@charset "utf-8";.lt_bn{position:relative}.lt_bn li{position:relative;text-align:center;}.lt_bn li img{width:100%;height:380px;vertical-align:top;object-fit:cover;}.arrow:after,.arrow:before{box-sizing:border-box;}.lt_bn .bx-prev{border-radius:50px;position:absolute;top:50%;left:12%;width:50px;height:50px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(prev.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}.lt_bn .bx-next{border-radius:50px;position:absolute;top:50%;right:12%;width:50px;height:50px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(next.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}.lt_bn .bx-prev:hover,.lt_bn .bx-next:hover{opacity:0.5}.lt_bn .bn_link{display:block;position:absolute;top:10px;right:10px;background:#fff;color:#fff;border-radius:50px;width:40px;padding:0;line-height:40px;text-align:center;opacity:0}.lt_bn:hover .bn_link{opacity:0.5}@media (max-width:1279px){.lt_bn li .bn_tit{font-size:3em}.lt_bn li .bn_detail{font-size:1.2em;margin:20px 0}.lt_bn .bx-prev{border-radius:50px;position:absolute;top:50%;left:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(prev.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}.lt_bn .bx-next{border-radius:50px;position:absolute;top:50%;right:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(next.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}}@media (max-width:969px){.lt_bn li img{height:600px;}.lt_bn li .bn_tit{font-size:2.5em}.lt_bn li .bn_detail{font-size:1em}.lt_bn li .bn_view{line-height:40px;font-size:1em}.lt_bn .txt_wr{padding:40px}.lt_bn .bx-prev{border-radius:50px;position:absolute;top:50%;left:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(prev.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}.lt_bn .bx-next{border-radius:50px;position:absolute;top:50%;right:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(next.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}}@media (max-width:639px){.lt_bn li img{height:300px;}.lt_bn li .bn_tit{font-size:1.8em;width:60%}.lt_bn .bx-prev,.lt_bn .bx-next{width:36px;height:36px;margin-top:-18px;background-size:25%}.lt_bn .bx-prev{border-radius:50px;position:absolute;top:50%;left:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(prev.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}.lt_bn .bx-next{border-radius:50px;position:absolute;top:50%;right:5%;width:40px;height:40px;margin-top:-25px;opacity:0.8;text-indent:-999px;overflow:hidden;background:url(next.png) no-repeat 50% 50%  rgba(29,77,169,0.5)}}